<template>
    <div class="login_container">
        <div class="login_box">
            <!--头像区域-->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>

            <!--登录表单区域-->
            <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
                <!--用户名-->
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user" ></el-input>
                </el-form-item>
                <!--密码-->
                <el-form-item prop="password">
                    <el-input  v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password" ></el-input>
                </el-form-item >

                <!--按钮-->
                <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="resetLoginForm" >重置</el-button>
                </el-form-item>

            </el-form>

        </div>
    </div>
</template>

<script>
export default {
  data () {
    return {
      // 登录表单数据对象
      loginForm: {
        username: 'admin',
        password: '123456'
      },
      //   表单验证规则
      loginFormRules: {
        //   验证用户名
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        //   验证密码
        password: [
          { required: true, message: '请输入用户密码', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ]
      }
    }
  },

  methods: {
    //   重置登录表单
    resetLoginForm () {
      // console.log(this)
      this.$refs.loginFormRef.resetFields()
    },
    // 登录方法
    login () {
      this.$refs.loginFormRef.validate(async (valid) => {
        // console.log(valid)
        if (!valid) return
        const { data: result } = await this.$http.post('login', this.loginForm)
        console.log(result)
        if (result.meta.status !== 200) { return this.$message.error('登录失败') }
        console.log('登录成功!!')

        this.$message.success('登录成功')
        // 获取服务端token,存入sessionStorage中
        window.sessionStorage.setItem('token', result.data.token)
        // 跳转至后台页面
        this.$router.push('/home')
      })
    }
  }

}
</script>

<style lang="less" scoped>
.login_container {
    background: #2b4b6b;
    height: 100%;
}

.login_box {
    width: 450px;
    height: 300px;
    background-color: #ffffff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    .avatar_box {
        height: 130px;
        width: 130px;
        border: 2px  solid #eeeeee;
        border-radius: 50%;
        padding: 10px;
        box-shadow: 0 0 10px #ddd;
        position: absolute;
        left: 50%;
        transform: translate(-50%, -50%);
        background-color: #eee;
        img {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;
        }
    }
}

.login_form {
    position: absolute;
    bottom: 0%;
    width: 100%;
    padding: 0 10%;
    box-sizing: border-box;
}

.btns {
    display: flex;
    justify-content: flex-end;
}

</style>
